JPH0616982Y2 - Vehicle starter - Google Patents

Description

The present invention relates to a vehicle starter, and more particularly to a vehicle starter for a vehicle with an automatic transmission.

[Conventional technology]

Conventionally, a vehicle with an automatic transmission is equipped with a so-called belt type or torque converter type full automatic mechanism that does not have a middle position in the transmission and does not have a speed change lever in order to significantly facilitate driving operation. There are many things. Further, a vehicle having a fully automatic mechanism is generally structured so that the engine can be started regardless of whether or not the brake is operated.

[Problems to be solved by the invention]

However, in such a conventional technique, when a choke is used at the time of starting the engine, the number of revolutions of the engine rises above the idle revolution, so that a parking brake or a brake (including a foot brake and a side brake).
If you forget to put on, there was the inconvenience that the engine started suddenly at the same time. On the other hand, when starting the engine,
Regardless of whether or not the choke is used, the engine can be started even if the parking brake or the brake is forgotten to be applied, which causes a significant inconvenience to safe starting.

[Purpose of device]

INDUSTRIAL APPLICABILITY The present invention can improve the disadvantages of the above-mentioned conventional techniques, can effectively prevent a sudden start immediately after the engine is started at the time of starting the engine, and enable the engine to be started by using a foot brake when starting the engine at the time of warming up. It is an object of the present invention to provide a vehicle starting device for a vehicle with the automatic transmission described above.

[Means for solving problems]

Therefore, in the present invention, a vehicle starting device including a starter motor drive control unit having a starter relay for controlling energization to a starter motor, a starter switch for controlling the operation of the starter relay, and a power switch for the starter relay. In the above, a conduction control mechanism for the starter relay is provided between the power switch and the starter switch, and the conduction control mechanism operates at least in conjunction with the operation of the vehicle stop brake, and A first conduction circuit including a second switch portion which is connected in parallel to the first switch portion and operates in conjunction with the operation of a parking brake for parking the vehicle, and a second conduction circuit in the first conduction circuit.
The present invention is intended to achieve the above-mentioned object by adopting a configuration in which the switch section of (3) is configured by a third switch section that is selectively used as necessary.

[Action]

The engine starting method when using a choke is to start the engine by turning on the power switch and turning on the starter switch with the parking brake applied. In this case, the third switch portion in the conduction control mechanism which is interlocked by using the choke operates so as to select the second switch portion, and thereby the power switch and the starter switch are electrically connected to each other. As a result, the starter motor is driven by turning on the starter relay, and the engine is started. On the other hand, when starting the engine,
If the parking brake is forgotten, the second switch part in the continuity control mechanism does not operate, so the connection between the power switch and the starter switch remains in the "off" state, which is why the power switch and the starter switch. Even if the switch is turned “on”, the starter motor will not be driven and the engine will not start.

Next, in the engine starting method when the choke is not used, the engine is started by turning on the power switch and turning on the starter switch with the parking brake or the brake applied. In this case, the third switch portion in the conduction control mechanism that is interlocked by not using the choke operates so as to select the first conduction circuit including the above-described second switch portion. As a result, the power switch and the starter switch are connected via the first conduction circuit.

Therefore, by operating the brake or the parking brake, the first switch section or the second switch section in the first conduction circuit interlocked with these is turned on, and the power switch and the starter switch are electrically connected. The output of the storage battery described above is applied to the starter switch through the power switch, the first conduction circuit, the third switch section and the starter switch in order, and the starter relay is turned “on”.
As a result, a voltage is applied to the starter motor, the starter motor is driven, and the engine is started.

On the other hand, when the parking brake or the brake is forgotten to be applied at the time of starting the engine, the operation of the first and second switch portions of the first conduction circuit in the conduction control mechanism causes the operation between the power switch and the starter switch. The connection remains in the "off" state. Therefore, even if the power switch and the starter switch are turned on, the starter motor is not driven and the engine does not start.

Therefore, when the choke is used when the engine is started, the parking brake is always applied, and when the choke is not used, the parking brake or the brake is not always applied to start the engine. This allows
When the engine is started, a sudden start immediately after the engine is started is prevented. On the other hand, this means that when the choke is used, the engine can be started only by using the foot brake.

[Example of device]

A circuit configuration of a vehicle starting device with an automatic transmission according to an embodiment of the present invention will be described below with reference to FIG.

Reference numeral 1 indicates a starter motor drive control unit, and reference numeral 2 indicates an ignition circuit unit.

The starter motor drive control unit 1 includes a storage battery 10 that functions as a power source of the starter motor 22, a fuse 12 that prevents an excessive current from flowing into the starter motor drive control unit 1, and the starter motor drive control unit 1.
A main switch 14 as a power switch for putting the switch into a standby state, a continuity control mechanism 16 connected in series with the main switch 14 for controlling conduction to the starter switch 24 by being urged by a parking brake or a brake operation, and the conduction. A brake lamp 30 which is energized and lit by a brake switch means 16A as a first switch section in the control mechanism 16, a starter switch 24 which controls energization of the starter relay 20, and an energization operation of the starter switch 24. The starter relay 20 is energized to operate, and the starter motor 22 is energized by the conduction operation of the starter relay 20 and drive-controlled.

More specifically, the storage battery 10 functions as a power source of the starter motor drive control unit 1 when the engine is stopped, and is charged by a regulator (not shown) when the engine is driven. The electromotive force of the storage battery 10 is supplied to the main switch 14 via the fuse 12 and to the starter motor 22 via the normally open contact 20B of the starter relay 20 described later. The fuse 12 protects the starter motor drive controller 1 by preventing an excessive current from flowing into each component of the starter motor drive controller 1.

Also, by closing the main switch 14,
An electromotive force is applied from the storage battery 10 to the conduction control mechanism 16 to put the starter motor drive control unit 1 in a stabile state.

The conduction control mechanism 16 is urged by the operation of the hand brake or the foot brake to perform the "on / off" operation, and the brake switch means 16A serving as a first switch section, and the operation of the parking brake are urged to the "on / off" operation. The second switch portion 16D that operates, the first and second diodes 161, 162 that function to prevent reverse current, and the conduction circuit from the storage battery 10 to the starter switch 24 are switched by the choke operation. And a third switch portion 16E that functions as a changeover switch.

The brake switch means 16A includes a first contact 161 that operates "on" in conjunction with a handbrake operation and a second contact 1 that operates "on" in conjunction with a footbrake operation.
62 and the first and second contact points 16
1, 162 are connected in parallel. One end of the brake switch means 16A on the starter switch 24 side is the first
C of the second switch section 16E is connected via the diode 16B.
It is connected to the terminals and also to the brake lamp 30. Further, one end on the starter switch side of the second switch portion 16D, which is connected in parallel to the brake switch means 16A via the second diode 16C, has a second end.
It is connected to the C terminal of the third switch section 16E via the diode 16C and directly connected to the third switch section 16E.
It is connected to the A terminal of E. Then, one ends of the brake switch means 16A and the second switch portion 16D on the main switch 14 side are closed and are connected to the main switch 14. The B terminal, which is the common terminal of the third switch section 16E, is connected to the starter switch 24.

This will be described in more detail. In the conduction control mechanism 16, the brake switch means 16A and the second switch section 16D have a first diode 16B and a second diode 16 respectively.
A circuit connected in parallel via C to the C terminal of the third switch section 16E forms the first conduction circuit 17, while the second switch section 16D directly connects to the third switch section 16E.
The second conduction circuit 18 is formed by a circuit reaching the A terminal of the first conduction circuit 17 including the second conduction circuit 18.
Is switched to select only the second conduction circuit 18 by the third switch unit 16E as necessary.

That is, the conduction control mechanism 16 configured in this way is
The third switch portion 16E is connected in series between the main switch 14 and the starter switch 24, and the third switch portion 16E is urged by the choke operation when the engine is cold (when the engine is not warm), and the A terminal side (second conduction circuit). 18), the conduction control between the main switch 14 and the starter switch 24 is performed only via the second switch section 16D. Further, when the third switch portion 16E is switched to the C terminal side (first conduction circuit 17 side) due to unoperated choke during warm-up (when the engine is warm), the main switch 14 and starter switch Energization control between 24 is performed via the second switch section 16D or the brake switch means 16A. Therefore, when the choke is used, the conduction control to the starter switch 24 is performed only by operating the parking brake, and when the choke is not operated, the conduction to the starter switch 24 is performed by operating either the hand brake, the foot brake, or the parking brake. Control is made.

The brake lamp 30 is an indicator light provided on an instrument panel or the like that is turned on by being urged by the "on" operation of the brake switch means 16A in the conduction control mechanism 16 and turned off by being urged by the "off" operation. is there.

The starter switch 24 has a function of controlling conduction to the starter relay 20, and the "ON" operation energizes the coil 20A of the starter relay 20 to close the interlocking normally open contact 20B. The energization of the starter motor 22 is controlled to drive it. The starter switch 24 is composed of a push button switch, and is turned "on" only when it is operated.

As described above, the starter relay 20 has a coil 20A which is connected to the starter switch 24 and whose energization is controlled, and a function of energizing the coil 20A and performing a closing operation to energize the starter motor 22 with the electromotive force of the storage battery 10. It has a normally open contact 20B.

The starter motor 22 is energized and controlled by the starter relay 20, and is driven when the starter switch 24 is closed to start the engine.

On the other hand, the ignition circuit unit 2 includes a magneto 60 that is rotated by driving the engine to generate an electromotive force for ignition, and the magneto 60.
The diode 62 that rectifies the electromotive force generated in step S1, the capacitor 64 that has a function of charging or discharging the electromotive force as needed, the thyristor 66 that controls the charging and discharging of the capacitor 64, and the engine ignition An ignition coil 68 for inducing a high voltage, a spark plug 70 for igniting the engine, and a short-circuit control means 65 for short-circuit controlling the electromotive force generated by the magneto 60 as necessary.

More specifically, the magneto 60 is installed in a flywheel (not shown) directly connected to the engine, includes a charging coil 60A and a pickup coil 60B, and a rotor (not shown) composed of a permanent magnet rotates. By doing so, an electromotive force for ignition is induced in the charging coil 60A, and a signal electromotive force for controlling conduction of the thyristor 66 is induced in the pickup coil.

The diode 62 rectifies the electromotive force induced in the charging coil 60A of the magneto 60, supplies the electromotive force to the ignition coil 68 via the capacitor 64 connected in series with the electromotive force, and is connected in parallel to the charging coil 60A. The electromotive force is supplied to the thyristor 66.

The thyristor 66 is connected in parallel to the charging coil 60A, and the gate terminal G is the pickup coil 6 of the magneto 60.
It is connected to 0B. The thyristor 66 becomes conductive when supplied with the signal electromotive force from the pickup coil 60B, and causes a part of the electromotive force generated by the magneto 60 to flow to the ground. On the other hand, the capacitor 64 has a function of charging the electromotive force supplied from the magneto 60, and is also urged by the conducting operation of the thyristor 66 to discharge the charged electromotive force to the ignition coil 68.

The ignition coil 68 has a function of boosting the electromotive force discharged from the capacitor 64 and supplying a high voltage for ignition to the spark plug 70. The spark plug 70 is
The electromotive force supplied from the ignition coil 68 has a function of generating a spark and igniting the engine.

On the other hand, the short-circuit control means 65 performs an opening operation in conjunction with the use of a parking brake (not shown), and a closing operation in conjunction with the first switch portion 65A that is closed when not in use and a choke, and when not in use. The first switch unit 65A is constituted by the second switch unit 65B which performs the opening operation.
And the second switch section 65B are connected in series. Here, the first switch section 65A and the second switch section 16D in the conduction control mechanism 16 are interlocking switches, and the second switch section 65B and the third switch section 16E in the conduction control mechanism 16 are also connected. Is also an interlocking switch.

That is, the short circuit control means 65 configured in this way
It has a function of short-circuiting the electromotive force supplied from the charging coil 60A of the magneto 60 to the capacitor 64 via the diode 62 by not operating the parking brake and choking.

Next, the overall operation of this embodiment will be described.

First, the operation at the time of starting the engine when the choke is used at the time of cooling will be described.

Main switch 1 with the parking brake applied
4 is closed and the starter switch 24 is closed. As a result, the electromotive force of the storage battery 10 in the starter motor drive control unit 1 is brought into a state in which the starter switch 24 is energized by the action of the conduction control mechanism 16. Further, the operation of the first switch portion 65A in the ignition circuit portion 2 releases the short circuit of the charging coil 60A of the magneto 60. Therefore, by the closing operation of the starter switch 24, the starter relay 20 operates and the starter motor 22 drives,
On the other hand, the ignition circuit section 2 functions to start the engine. On the other hand, in this case, if the parking brake is not applied when the engine is started, even if the main switch 14 and the starter switch 24 are closed, the conduction control mechanism 1
By the action of 6, the power supply to the starter switch 24 is blocked, so the starter relay 20 does not operate, and the action of the first switch portion 65A in the ignition circuit portion 2 causes the charging coil 60A of the magneto 60 to be in a short-circuited state. Because it is kept
The ignition circuit section 2 does not function and the engine cannot be started after all.

On the other hand, the operation at the time of starting the engine when the choke is not used, such as during warm-up, will be described.

In this case, the short circuit state of the charging coil 60A of the magneto 60 of the ignition circuit unit 2 is always maintained in the short circuit released state by the action of the second switch unit 65B in the ignition circuit unit 2.

With the parking brake or the brake applied, the main switch 14 is closed and the starter switch 24 is closed as described above. As a result, the electromotive force of the storage battery 10 in the starter motor drive control unit 1 is in a state in which the starter switch 24 is energized by the operation of the conduction control mechanism 16. Therefore, by the closing operation of the starter switch 24, the starter relay 20 operates to drive the starter motor 22, the ignition circuit unit 2 functions, and the engine starts.

On the other hand, in this case, when the parking brake, the hand brake, or the foot brake is forgotten to be applied when the engine is started, even if the main switch 14 and the starter switch 24 are closed, the conduction control mechanism 16 works to start the starter switch. Since the conduction to 24 is blocked,
Since the starter relay 20 does not operate and the starter motor 22 does not drive, and therefore the ignition circuit section 2 does not function, engine start cannot be performed.

Since the present embodiment is configured as described above, according to this, when the engine is started when the choke is used, it must be started unless the parking brake is applied, and when the engine is not used, the choke is not started. It will not start unless the parking brake, hand brake, or foot brake is applied. On the other hand, when starting the engine when the choke is not used, it is possible to start the engine with the foot brake applied. In the event of engine stall during warm-up), there is an advantage that the engine can be started quickly by using only the foot brake.

In the present embodiment, the short circuit control means 65 is provided in the ignition circuit unit 2 so that the ignition circuit unit 2 is short-circuited by the parking brake and the choke operation. The vehicle starting device functions in the same manner even if the short-circuit control means is not provided.

[Effect of device]

Since the present invention is configured and operates as described above, according to this, when using a choke when starting the engine, the engine will not start unless the parking brake is applied, so it is mandatory to apply the parking brake. In addition, even if the choke is not used, the engine will not start unless the parking brake or the brake is applied.Therefore, by obligating the parking brake or the brake to be applied, the engine at the time of starting the engine particularly when the choke is used. It is possible to effectively prevent sudden start immediately after starting. In addition, since it is mandatory to use the parking brake or the brake when starting the engine, it is extremely effective for safe starting of the engine. On the other hand, when an engine stall occurs during running (warm-up), It is possible to provide an unprecedented excellent vehicle starting device in which the engine can be started quickly by using the foot brake.

[Brief description of drawings]

FIG. 1 is a circuit diagram of a starting device for a vehicle with an automatic transmission according to the present invention. DESCRIPTION OF SYMBOLS 1 ... Starter motor drive control section, 14 ... Power switch, 16 ... Continuity control mechanism, 16A ... First switch section, 16D ... Second switch section, 16E ... Third switch section, 17 ...... First conduction circuit, 20 ...... Starter relay, 22 ...... Starter motor, 24 ...... Starter switch.

Claims (1)

[Scope of utility model registration request] 1. A vehicle starter equipped with a starter motor drive controller having a starter relay for controlling energization of a starter motor, a starter switch for controlling operation of the starter relay, and a power switch for the starter relay. In the device, a conduction control mechanism for the starter relay is provided between the power switch and the starter switch, and the conduction control mechanism operates at least in association with an operation of a vehicle stop brake. And the first
A first conducting circuit composed of a second switch portion which is connected in parallel to the switch portion and is operated in association with the operation of the parking brake for parking the vehicle, and the first switch portion in the first conducting circuit. When the choke is used, the choke is separated from the starter switch, and when the choke is not used, each of the first and second switch sections is constituted by a third switch section which is connected in parallel to the starter switch. Vehicle starting device.